News
Anthropic's fix for Fable 5's high cost is turning it into a manager that delegates to Sonnet 5
1+ hour, 15+ min ago (206+ words) the-decoder. com Anthropic's fix for Fable 5's high cost is turning it into a manager that delegates to Sonnet 5 Claude Fable 5 is expensive. Anthropic now recommends using it mainly as a planner, handing execution off to smaller models. The Claude…...
Anthropic's Claude Fable 5 dominates new industry benchmarks at a steep premium
1+ hour, 40+ min ago (444+ words) Benchmarking platform Artificial Analysis has released six new industry-specific performance indices for AI models. Anthropic's Claude Fable 5 leads every category, but cheaper alternatives handle tasks at a fraction of the cost. How well do current AI models perform on industry-specific…...
Cloudflare replaces its blanket AI bot block with granular controls for search, training, and agent crawlers
1+ day, 22+ hour ago (279+ words) Cloudflare gives all customers new tools to control how AI bots access their websites. Since July 2024, Cloudflare customers have been able to block all AI crawlers with a single click. Now, instead of a blanket block, site owners can choose…...
JADEPUFFER is the first agentic ransomware operation and it exposes old security sins at machine speed
2+ day, 7+ hour ago (279+ words) Security firm Sysdig describes an extortion attack where a language model broke in on its own, stole credentials, and destroyed databases. No human appeared to be at the controls. In this case, the patch was never applied. The agent exploited…...
Anthropic developer shares prompting tips for Fable 5 that focus on finding your own blind spots first
4+ day, 5+ hour ago (595+ words) Anyone who codes with AI agents knows the problem. The prompt is set, the plan seems clear, but the result isn't quite right. According to Anthropic developer Thariq Shihipar, with Claude's latest model, Fable 5, this is less and less a…...
Security vulnerability reports have exploded since AI models started hunting for bugs
5+ day, 52+ min ago (178+ words) the-decoder. com Security vulnerability reports have exploded since AI models started hunting for bugs Epoch AI has charted the massive spike in reported security vulnerabilities. In June 2026, 21 organizations reported about 1, 500 high-severity and critical vulnerabilities (CVEs), more than 3. 5 times the previous…...
UK's AI Security Institute finds standard benchmarks systematically underestimate what AI agents can actually do
5+ day, 1+ hour ago (723+ words) The UK's AI Security Institute (AISI) tested frontier models across seven benchmarks with varying compute budgets. The finding: fixed budget caps systematically underestimate how capable AI agents really are. An AI agent's performance is a curve that rises with test-time…...
Anthropic says it cut 80 percent of Claude Code's system prompt because Fable 5 models "want a smaller system prompt"
6+ day, 1+ hour ago (190+ words) the-decoder. com Anthropic says it cut 80 percent of Claude Code's system prompt because Fable 5 models "want a smaller system prompt" Anthropic says it has cut 80 percent of the system prompt for Claude Code. Tariq Shihipar, a member of technical staff…...
Hidden code in Claude Code secretly flagged Chinese users
1+ week, 6+ hour ago (310+ words) Maximilian Schreiner is Managing Editor at THE DECODER and has covered artificial intelligence for close to a decade, from new models and tools to their impact on businesses, media, and society. He brings that expertise to heise KI PRO, where…...
Anthropic's Fable 5 is back worldwide after a two-week government ban over a jailbreak
1+ week, 9+ hour ago (478+ words) After a two-week ban, the US government is letting Anthropic ship its most powerful AI model globally again. Fable 5 is back worldwide starting today through the Claude Platform, Claude. ai, Claude Code, and Claude Cowork. Pro, Max, Team, and select…...